CA1065995A - Catalyse de polymeres traites aux amines par composition isolante dielectrique constante - Google Patents
Catalyse de polymeres traites aux amines par composition isolante dielectrique constanteInfo
- Publication number
- CA1065995A CA1065995A CA228,111A CA228111A CA1065995A CA 1065995 A CA1065995 A CA 1065995A CA 228111 A CA228111 A CA 228111A CA 1065995 A CA1065995 A CA 1065995A
- Authority
- CA
- Canada
- Prior art keywords
- sodium
- group
- bromide
- iodide
- chloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 120
- 150000001412 amines Chemical class 0.000 title claims abstract description 59
- 150000001875 compounds Chemical class 0.000 title description 30
- 238000006555 catalytic reaction Methods 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 63
- 150000003839 salts Chemical class 0.000 claims abstract description 54
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims abstract description 48
- 239000003054 catalyst Substances 0.000 claims abstract description 47
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 44
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims abstract description 33
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims abstract description 32
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 claims abstract description 27
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 26
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000011780 sodium chloride Substances 0.000 claims abstract description 22
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 18
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 claims abstract description 18
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims abstract description 18
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims abstract description 18
- JAAGVIUFBAHDMA-UHFFFAOYSA-M rubidium bromide Chemical compound [Br-].[Rb+] JAAGVIUFBAHDMA-UHFFFAOYSA-M 0.000 claims abstract description 18
- FGDZQCVHDSGLHJ-UHFFFAOYSA-M rubidium chloride Chemical compound [Cl-].[Rb+] FGDZQCVHDSGLHJ-UHFFFAOYSA-M 0.000 claims abstract description 18
- WFUBYPSJBBQSOU-UHFFFAOYSA-M rubidium iodide Chemical compound [Rb+].[I-] WFUBYPSJBBQSOU-UHFFFAOYSA-M 0.000 claims abstract description 18
- 235000009518 sodium iodide Nutrition 0.000 claims abstract description 16
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 16
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002253 acid Substances 0.000 claims abstract description 12
- 150000004985 diamines Chemical class 0.000 claims abstract description 12
- -1 polydimethyl-siloxane Polymers 0.000 claims abstract description 12
- QGMGHALXLXKCBD-UHFFFAOYSA-N 4-amino-n-(2-aminophenyl)benzamide Chemical compound C1=CC(N)=CC=C1C(=O)NC1=CC=CC=C1N QGMGHALXLXKCBD-UHFFFAOYSA-N 0.000 claims abstract description 11
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 claims abstract description 11
- DENRZWYUOJLTMF-UHFFFAOYSA-N diethyl sulfate Chemical compound CCOS(=O)(=O)OCC DENRZWYUOJLTMF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229940008406 diethyl sulfate Drugs 0.000 claims abstract description 11
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 11
- 150000003673 urethanes Chemical class 0.000 claims abstract description 11
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 10
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 10
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005642 Oleic acid Substances 0.000 claims abstract description 10
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 10
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 10
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 claims abstract description 10
- KEDYYXYVCZMXCI-UHFFFAOYSA-N 4-[3-(4-aminophenyl)butan-2-yl]aniline Chemical compound C=1C=C(N)C=CC=1C(C)C(C)C1=CC=C(N)C=C1 KEDYYXYVCZMXCI-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 9
- 239000001273 butane Substances 0.000 claims abstract description 9
- LYQFWZFBNBDLEO-UHFFFAOYSA-M caesium bromide Chemical compound [Br-].[Cs+] LYQFWZFBNBDLEO-UHFFFAOYSA-M 0.000 claims abstract description 9
- AIYUHDOJVYHVIT-UHFFFAOYSA-M caesium chloride Chemical compound [Cl-].[Cs+] AIYUHDOJVYHVIT-UHFFFAOYSA-M 0.000 claims abstract description 9
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims abstract description 9
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 9
- 150000002367 halogens Chemical class 0.000 claims abstract description 9
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 9
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims abstract description 9
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- 229940102127 rubidium chloride Drugs 0.000 claims abstract description 9
- 150000008064 anhydrides Chemical group 0.000 claims abstract description 8
- 150000004820 halides Chemical class 0.000 claims abstract description 8
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 8
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 8
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 7
- 230000003197 catalytic effect Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 18
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 14
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 9
- 239000001103 potassium chloride Substances 0.000 claims description 7
- 235000011164 potassium chloride Nutrition 0.000 claims description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 3
- 239000004814 polyurethane Substances 0.000 abstract description 10
- 229920002635 polyurethane Polymers 0.000 abstract description 9
- 229920001730 Moisture cure polyurethane Polymers 0.000 abstract description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 abstract description 5
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 10
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 9
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 9
- 239000012948 isocyanate Substances 0.000 description 8
- 150000002513 isocyanates Chemical class 0.000 description 8
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 7
- 238000002156 mixing Methods 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 125000005442 diisocyanate group Chemical group 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- JWQKMEKSFPNAIB-UHFFFAOYSA-N 1-methyl-5-prop-1-en-2-ylcyclohexene Chemical compound CC(=C)C1CCC=C(C)C1 JWQKMEKSFPNAIB-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 101710199430 TATA-box-binding protein 2 Proteins 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920005556 chlorobutyl Polymers 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- UKJLNMAFNRKWGR-UHFFFAOYSA-N cyclohexatrienamine Chemical group NC1=CC=C=C[CH]1 UKJLNMAFNRKWGR-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 125000004427 diamine group Chemical group 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010944 pre-mature reactiony Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5093—Complexes of amines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47636974A | 1974-06-05 | 1974-06-05 | |
| US49650474A | 1974-08-12 | 1974-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1065995A true CA1065995A (fr) | 1979-11-06 |
Family
ID=27045161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA228,111A Expired CA1065995A (fr) | 1974-06-05 | 1975-05-30 | Catalyse de polymeres traites aux amines par composition isolante dielectrique constante |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS561330B2 (fr) |
| CA (1) | CA1065995A (fr) |
| DE (1) | DE2524083C2 (fr) |
| FR (1) | FR2273838A1 (fr) |
| GB (1) | GB1499215A (fr) |
| IT (1) | IT1036151B (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7605306L (sv) * | 1975-05-16 | 1976-11-17 | Firestone Tire & Rubber Co | Med amin herdbar polymer |
| JPH0379892A (ja) * | 1989-08-21 | 1991-04-04 | Yoshihisa Miura | チャック付きフェルール |
| US6287080B1 (en) * | 1999-11-15 | 2001-09-11 | General Electric Company | Elastomeric formulation used in the construction of lightweight aircraft engine fan blades |
| EP2489912B1 (fr) | 2006-01-13 | 2016-03-09 | Swagelok Company | Accessoire pour tuyau ou canalisation |
| BR112018005209B1 (pt) * | 2015-09-25 | 2022-03-22 | Lanxess Solution Us Inc | Método de preparação de um elastômero de poliuretano |
| CN115701420B (zh) * | 2021-08-02 | 2024-09-24 | 中国石油化工股份有限公司 | 一种提高脂肪酸酰胺化物合成反应装料系数的方法 |
| CN115466389B (zh) * | 2022-09-13 | 2023-07-25 | 中国人民解放军国防科技大学 | 一种低温快速固化的含羟基结构氰酸酯树脂及其制备方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755261A (en) * | 1972-05-01 | 1973-08-28 | Du Pont | Curing of amine curable polymers diamines with complexes of selected and alkali metal salts |
-
1975
- 1975-05-23 GB GB2300375A patent/GB1499215A/en not_active Expired
- 1975-05-29 FR FR7516823A patent/FR2273838A1/fr active Granted
- 1975-05-30 DE DE19752524083 patent/DE2524083C2/de not_active Expired
- 1975-05-30 CA CA228,111A patent/CA1065995A/fr not_active Expired
- 1975-06-04 IT IT6841875A patent/IT1036151B/it active
- 1975-06-04 JP JP6661375A patent/JPS561330B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2273838B1 (fr) | 1979-04-13 |
| JPS561330B2 (fr) | 1981-01-13 |
| IT1036151B (it) | 1979-10-30 |
| GB1499215A (en) | 1978-01-25 |
| FR2273838A1 (fr) | 1976-01-02 |
| JPS5130297A (fr) | 1976-03-15 |
| DE2524083C2 (de) | 1986-09-11 |
| DE2524083A1 (de) | 1976-01-15 |
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